--- title: "This open-source ESP32 touch synth just got a massive upgrade, and it's only €35 to make" url: https://daily.dev/posts/this-open-source-esp32-touch-synth-just-got-a-massive-upgrade-and-it-s-only-35-to-make-m3ksc2mtu source_url: https://www.xda-developers.com/this-open-source-esp32-touch-synth-just-got-a-massive-upgrade-and-its-only-35-to-make type: article source: "XDA Developers" published: 2026-08-27T00:44:58.870Z updated: 2026-08-27T00:45:26.884Z tags: ["hardware", "iot", "embedded"] reading_time: 2 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # This open-source ESP32 touch synth just got a massive upgrade, and it's only €35 to make **[XDA Developers](https://daily.dev/sources/xda-developers)** · 2 min read · 0 upvotes · 0 comments ## Summary A DIY polyphonic synthesizer built on the ESP32 microcontroller has been upgraded to a v2 called TYPE-2, buildable for around €35 in components. The new version fixes audio glitches by reassigning processor cores and redesigning the touch copper lanes, and the open-source design uses a DSP core with polynomial saturation, dual-rate processing, and analog-modeled filters for studio-quality sound. MIDI (USB/Serial) and Bluetooth support are planned for future updates. The project is on GitHub and requires minimal wiring to build. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Someone turned their ESP32 into a touch-activated polyphonic synthesizer](https://daily.dev/posts/someone-turned-their-esp32-into-a-touch-activated-polyphonic-synthesizer-nuh1loyoe) · XDA Developers · 0 upvotes · 0 comments - [This Handy Synth Packs An ESP32](https://daily.dev/posts/this-handy-synth-packs-an-esp32-febhcvar3) · Hackaday · 1 upvotes · 0 comments - [ESP32Synth : An Audio Synthesis Library For The ESP32](https://daily.dev/posts/esp32synth-an-audio-synthesis-library-for-the-esp32-nfftx4xvl) · Hackaday · 0 upvotes · 0 comments - [Easy Theremin Uses ESP32](https://daily.dev/posts/easy-theremin-uses-esp32-jdwlggd77) · Hackaday · 0 upvotes · 0 comments - [a portable Python synthesizer for music and graphics](https://daily.dev/posts/a-portable-python-synthesizer-for-music-and-graphics-meloufmyo) · Hacker News · 0 upvotes · 0 comments --- Tags: [#hardware](https://daily.dev/tags/hardware), [#iot](https://daily.dev/tags/iot), [#embedded](https://daily.dev/tags/embedded) [View this post on daily.dev](https://daily.dev/posts/this-open-source-esp32-touch-synth-just-got-a-massive-upgrade-and-it-s-only-35-to-make-m3ksc2mtu)